<HTML><HEAD><TITLE>hash_keys(+Table, -Keys)</TITLE>
</HEAD><BODY>[ <A HREF="index.html">library(hash)</A> | <A HREF="../../index.html">Reference Manual</A> | <A HREF="../../fullindex.html">Alphabetic Index</A> ]
<H1>hash_keys(+Table, -Keys)</H1>
Retrieve the current hash table keys
<DL>
<DT><EM>Table</EM></DT>
<DD>A hash table
</DD>
<DT><EM>Keys</EM></DT>
<DD>a variable or list
</DD>
</DL>
<H2>Description</H2>

	Retrieve the hash table keys in the form of a list of Keys.
	This list is cached by the hash table and only recomputed when
	the table has changed.
<H3>Modes and Determinism</H3><UL>
<LI>hash_keys(+, -) is det
</UL>

</BODY></HTML>
